<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>炼焦大数据智能诊断系统 - 数据分析工作平台</title>
    <link rel="stylesheet" href="../styles/main.css">
    <link rel="stylesheet" href="../styles/animate.css">
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
    <script src="../scripts/jquery.min.js"></script>
    <script src="../scripts/main.js" defer></script>
    <style>
        /* 新增：调整主标题字体大小 */
        header h1 {
            font-size: 2.5em; /* 原默认约2em，调整为2.5em更突出 */
            margin-bottom: 0.3em; /* 调整与副标题的间距 */
            background: linear-gradient(to right, #1a4b8c, #2e6fce);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            font-weight: 700;
            letter-spacing: 1px;
        }
        
        header .subtitle {
            font-size: 1.3em;
            color: #4a5568;
            font-weight: 500;
            letter-spacing: 2px;
            text-transform: uppercase;
            position: relative;
            display: inline-block;
        }
        
        header .subtitle:after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 40%;
            height: 2px;
            background: linear-gradient(to right, #1a4b8c, #2e6fce);
        }

        /* 导航样式优化 */
        nav {
            background: var(--gradient-dark); /* 使用与页脚相同的渐变背景 */
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0,0,0,0.15);
            padding: 10px 0;
        }
        
        nav .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        nav ul {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            margin: 0;
            padding: 0;
        }
        
        nav ul li {
            list-style: none;
        }
        
        nav ul li a {
            display: block;
            color: white;
            text-decoration: none;
            padding: 15px 20px;
            transition: all 0.3s ease;
            font-weight: 500;
            position: relative;
        }
        
        nav ul li a:hover, nav ul li a.active {
            background-color: #2c4f8a;
            color: #ffffff;
        }
        
        nav ul li a.active:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(to right, #4a90e2, #63b3ed);
        }
        
        /* 英雄区域优化 */
        .hero {
            background: linear-gradient(135deg, #184e8e 0%, #112b50 100%);
            color: white;
            padding: 80px 0 50px;
            position: relative;
            overflow: hidden;
        }
        
        .hero-bg-animation {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 1;
        }
        
        /* 添加动态粒子背景效果 */
        .particle {
            position: absolute;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            pointer-events: none;
            z-index: 0;
        }
        
        .hero-content {
            position: relative;
            z-index: 2;
        }
        
        /* 优化英雄区布局 */
        .hero .row {
            display: flex;
            align-items: center;
            gap: 30px;
        }
        
        .col-lg-6 {
            flex: 0 0 50%;
            max-width: 50%;
        }
        
        .hero h2 {
            font-size: 2.8rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            background: linear-gradient(to right, #ffffff, #e0e7ff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: 1px;
            line-height: 1.2;
        }
        
        .hero p {
            font-size: 1.2rem;
            line-height: 1.8;
            margin-bottom: 2rem;
            color: rgba(255, 255, 255, 0.9);
        }
        
        .hero-actions {
            display: flex;
            gap: 15px;
        }
        
        .hero-image-container {
            display: flex;
            align-items: center;
            justify-content: flex-end;
            width: 100%;
            height: 350px;
        }
        
        .hero-image {
            max-width: 100%;
            max-height: 100%;
            border-radius: 12px;
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.25);
            transition: transform 0.5s ease, box-shadow 0.5s ease;
            object-fit: contain;
        }
        
        .hero-image:hover {
            transform: translateY(-10px) scale(1.02);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
        }
        
        /* 导航模块样式改进 */
        .nav-overview {
            padding: 80px 0 60px;
            background: linear-gradient(to bottom, #fff, #f8f9fa);
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 20px;
            font-size: 2.2rem;
            color: #1a3b6d;
            font-weight: 700;
            position: relative;
            padding-bottom: 15px;
        }
        
        .section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background: linear-gradient(to right, #1a4b8c, #4a90e2);
        }
        
        .nav-modules-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }
        
        .nav-module-card {
            background: white;
            border-radius: 12px;
            padding: 30px;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
            transition: all 0.4s ease;
            display: flex;
            flex-direction: column;
            position: relative;
            overflow: hidden;
            z-index: 1;
            height: 100%;
        }
        
        .nav-module-card:before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: linear-gradient(to right, #1a4b8c, #4a90e2);
            transform: translateY(-100%);
            transition: transform 0.3s ease;
        }
        
        .nav-module-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
        }
        
        .nav-module-card:hover:before {
            transform: translateY(0);
        }
        
        .nav-module-icon {
            width: 70px;
            height: 70px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
            margin-bottom: 20px;
            font-size: 28px;
            color: #1a4b8c;
            transition: all 0.3s ease;
        }
        
        .nav-module-card:hover .nav-module-icon {
            background: linear-gradient(135deg, #1a4b8c 0%, #4a90e2 100%);
            color: white;
            transform: scale(1.1);
        }
        
        .nav-module-card h4 {
            font-size: 1.3rem;
            margin-bottom: 15px;
            color: #333;
            font-weight: 600;
        }
        
        .nav-module-card p {
            color: #666;
            font-size: 1rem;
            line-height: 1.6;
            margin-bottom: 20px;
            flex-grow: 1;
        }
        
        .nav-module-card .btn {
            align-self: flex-start;
            margin-top: auto;
        }
        
        .nav-module-card.highlight {
            background: linear-gradient(135deg, #f0f6ff 0%, #ffffff 100%);
            border: 2px solid #e1e9ff;
        }
        
        .nav-module-card.highlight:before {
            height: 7px;
            background: linear-gradient(to right, #1a4b8c, #2c4f8a);
        }
        
        /* 技术栈卡片优化 */
        .tech-stack {
            padding: 80px 0;
            background: linear-gradient(to bottom, #ffffff, #f5f8ff);
        }
        
        .tech-cards {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
            gap: 30px;
            margin-top: 50px;
        }
        
        .tech-card {
            background: white;
            border-radius: 12px;
            padding: 30px;
            text-align: center;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.06);
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        
        .tech-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
        }
        
        .tech-icon {
            width: 90px;
            height: 90px;
            margin: 0 auto 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: linear-gradient(135deg, #f5f7ff 0%, #ffffff 100%);
            box-shadow: 0 8px 20px rgba(26, 75, 140, 0.1);
            transition: all 0.3s ease;
        }
        
        .tech-card:hover .tech-icon {
            transform: scale(1.1);
            box-shadow: 0 10px 25px rgba(26, 75, 140, 0.15);
        }
        
        .tech-card img {
            width: 50px;
            height: 50px;
            object-fit: contain;
        }
        
        .tech-card h3 {
            font-size: 1.3rem;
            margin-bottom: 15px;
            color: #1a3b6d;
            font-weight: 600;
        }
        
        .tech-card ul {
            list-style-type: none;
            padding: 0;
            margin: 0;
            text-align: left;
        }
        
        .tech-card ul li {
            padding: 8px 0;
            color: #555;
            position: relative;
            padding-left: 20px;
            border-bottom: 1px solid #f0f0f0;
        }
        
        .tech-card ul li:last-child {
            border-bottom: none;
        }
        
        .tech-card ul li:before {
            content: '•';
            color: #1a4b8c;
            position: absolute;
            left: 0;
            font-size: 1.2em;
        }
        
        /* 学术研究专区样式优化 */
        .academic-research {
            padding: 80px 0;
            background: linear-gradient(135deg, #f5f8ff 0%, #ffffff 100%);
        }
        
        .academic-research h3 {
            font-size: 2.2rem;
            text-align: center;
            margin-bottom: 20px;
            color: #1a3b6d;
            font-weight: 700;
            position: relative;
            padding-bottom: 15px;
        }
        
        .academic-research h3:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background: linear-gradient(to right, #1a4b8c, #4a90e2);
        }
        
        .section-desc {
            text-align: center;
            max-width: 800px;
            margin: 0 auto 40px;
            color: #666;
            font-size: 1.1rem;
            line-height: 1.7;
        }
        
        .research-papers {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }
        
        .paper-card {
            background: white;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.06);
            transition: all 0.4s ease;
            height: 100%;
            position: relative;
        }
        
        .paper-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
        }
        
        .paper-card-inner {
            padding: 30px;
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        
        .paper-title {
            font-size: 1.25rem;
            margin-bottom: 15px;
            color: #1a3b6d;
            font-weight: 600;
            line-height: 1.4;
        }
        
        .paper-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 15px;
        }
        
        .paper-tag {
            background: #f0f6ff;
            color: #1a4b8c;
            padding: 5px 10px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
        }
        
        .paper-desc {
            color: #666;
            font-size: 1rem;
            line-height: 1.6;
            margin-bottom: 20px;
            flex-grow: 1;
        }
        
        .paper-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: auto;
        }
        
        .paper-date {
            font-size: 0.85rem;
            color: #888;
        }
        
        .paper-card.featured {
            border: 2px solid #d1e0ff;
            background: linear-gradient(135deg, #f5f8ff 0%, #ffffff 100%);
        }
        
        .paper-card.featured:before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 6px;
            background: linear-gradient(to right, #1a4b8c, #4a90e2);
        }
        
        /* 预期效益部分样式优化 */
        .benefits {
            padding: 80px 0;
            background: linear-gradient(to bottom, #fff, #f8f9fa);
        }
        
        .benefits-row {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }
        
        .benefit-card {
            background: white;
            border-radius: 12px;
            padding: 30px;
            text-align: center;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.06);
            transition: all 0.4s ease;
            height: 100%;
        }
        
        .benefit-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
            background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
        }
        
        .benefit-icon {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, #f5f7ff 0%, #e9ecef 100%);
            margin: 0 auto 20px;
            font-size: 30px;
            color: #1a4b8c;
            transition: all 0.3s ease;
        }
        
        .benefit-card:hover .benefit-icon {
            background: linear-gradient(135deg, #1a4b8c 0%, #4a90e2 100%);
            color: white;
            transform: scale(1.1);
        }
        
        .benefit-card h4 {
            font-size: 1.3rem;
            margin-bottom: 15px;
            color: #333;
            font-weight: 600;
        }
        
        .benefit-card p {
            color: #666;
            font-size: 1rem;
            line-height: 1.6;
        }
        
        /* 按钮样式优化 */
        .btn {
            display: inline-block;
            padding: 12px 25px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 600;
            font-size: 1rem;
            transition: all 0.3s ease;
            cursor: pointer;
            text-align: center;
        }
        
        .btn-primary {
            background: linear-gradient(135deg, #1a4b8c 0%, #4a90e2 100%);
            color: white;
            border: none;
            box-shadow: 0 5px 15px rgba(26, 75, 140, 0.2);
        }
        
        .btn-primary:hover {
            background: linear-gradient(135deg, #1a4b8c 0%, #3a80d2 100%);
            box-shadow: 0 8px 20px rgba(26, 75, 140, 0.3);
            transform: translateY(-3px);
        }
        
        .btn-outline {
            border: 2px solid white;
            color: white;
            background: transparent;
        }
        
        .btn-outline:hover {
            background: white;
            color: #1a4b8c;
            transform: translateY(-3px);
        }
        
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.9rem;
        }
        
        /* 动画效果优化 */
        .fade-in {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.8s ease, transform 0.8s ease;
        }
        
        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }
        
        .delay-1 {
            transition-delay: 0.2s;
        }
        
        .delay-2 {
            transition-delay: 0.4s;
        }
        
        .delay-3 {
            transition-delay: 0.6s;
        }
        
        .delay-4 {
            transition-delay: 0.8s;
        }
        
        /* 响应式优化 */
        @media (max-width: 991px) {
            .hero .row {
                flex-direction: column;
            }
            
            .col-lg-6 {
                flex: 0 0 100%;
                max-width: 100%;
            }
            
            .hero-image-container {
                justify-content: center;
                margin-top: 30px;
            }
            
            .nav-modules-grid {
                grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            }
            
            .research-papers {
                grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            }
        }
        
        @media (max-width: 767px) {
            .hero h2 {
                font-size: 2rem;
            }
            
            .hero p {
                font-size: 1.1rem;
            }
            
            .section-title {
                font-size: 1.8rem;
            }
            
            .nav-module-card {
                padding: 25px;
            }
            
            .nav-module-icon {
                width: 60px;
                height: 60px;
                font-size: 24px;
            }
            
            .nav-module-card h4 {
                font-size: 1.2rem;
            }
            
            .tech-cards {
                grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            }
            
            .tech-icon {
                width: 70px;
                height: 70px;
            }
            
            .tech-card h3 {
                font-size: 1.2rem;
            }
        }
        
        @media (max-width: 576px) {
            .hero-actions {
                flex-direction: column;
                gap: 10px;
            }
            
            .btn {
                width: 100%;
            }
            
            .nav-modules-grid,
            .tech-cards,
            .research-papers,
            .benefits-row {
                grid-template-columns: 1fr;
            }
        }

        /* 添加搜索图标和输入框 */
        .nav-search {
            display: flex;
            align-items: center;
            position: relative;
            margin-left: 20px;
        }

        .nav-search input {
            background-color: rgba(255, 255, 255, 0.1);
            border: none;
            border-radius: 20px;
            padding: 8px 15px 8px 35px;
            color: white;
            width: 180px;
            transition: all 0.3s ease;
        }

        .nav-search input::placeholder {
            color: rgba(255, 255, 255, 0.6);
        }

        .nav-search input:focus {
            background-color: rgba(255, 255, 255, 0.2);
            width: 220px;
            outline: none;
            box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.2);
        }

        .nav-search .search-icon {
            position: absolute;
            left: 12px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
        }

        /* 核心技术栈样式 */
        .tech-stack-section {
            padding: 60px 0;
            background-color: #f8faff;
        }
        
        .tech-stack-title {
            text-align: center;
            margin-bottom: 40px;
            color: #0a2463;
            position: relative;
        }
        
        .tech-stack-title:after {
            content: '';
            display: block;
            width: 80px;
            height: 4px;
            background: linear-gradient(90deg, #1e3a8a, #60a5fa);
            margin: 15px auto 0;
            border-radius: 2px;
        }
        
        .tech-stack-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            max-width: 1200px;
            margin: 0 auto;
        }
        
        .tech-item {
            background: white;
            border-radius: 12px;
            padding: 25px 20px;
            text-align: center;
            box-shadow: 0 10px 15px rgba(0,0,0,0.05);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        
        .tech-item:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 30px rgba(0,0,0,0.1);
        }
        
        .tech-icon {
            width: 80px;
            height: 80px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 15px;
        }
        
        .tech-icon img {
            max-width: 100%;
            max-height: 100%;
        }
        
        .tech-name {
            font-size: 1.2rem;
            font-weight: 600;
            color: #0a2463;
            margin: 10px 0;
        }
        
        /* 项目介绍动态背景 */
        .dynamic-gray-bg {
            background: linear-gradient(135deg, #f5f7fa 0%, #e4e7ed 100%);
            position: relative;
            overflow: hidden;
            padding: 50px 0;
            animation: bgPulse 15s infinite alternate;
        }
        
        .dynamic-gray-bg:before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255,255,255,0.3) 10%, transparent 10.5%),
                        radial-gradient(circle, rgba(255,255,255,0.4) 5%, transparent 5.5%);
            background-size: 50px 50px;
            opacity: 0.4;
            animation: bgMove 30s linear infinite;
        }
        
        .project-intro-content {
            position: relative;
            z-index: 2;
        }
        
        @media (max-width: 992px) {
            .tech-stack-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media (max-width: 576px) {
            .tech-stack-grid {
                grid-template-columns: 1fr;
            }
        }
    </style>
</head>
<body class="page-transition">
    <header class="modern-header">
        <div class="header-bg-glow"></div>
        <div class="container">
            <div class="header-left">
                <div class="header-logo">
                    <i class="fas fa-chart-line"></i>
                </div>
                <div class="header-title-group">
                    <h1 class="header-title">炼焦大数据智能诊断系统</h1>
                    <div class="subtitle">数据分析工作平台</div>
                </div>
            </div>
            <div class="quick-tools">
                <div class="tool-search">
                    <input type="text" class="search-input" placeholder="搜索...">
                    <button class="tool-btn search-btn"><i class="fas fa-search"></i></button>
                </div>
                <button class="tool-btn"><i class="fas fa-bell"></i></button>
                <button class="tool-btn"><i class="fas fa-cog"></i></button>
                <button class="tool-btn"><i class="fas fa-user"></i></button>
            </div>
        </div>
        <style>
            .modern-header {
                background: linear-gradient(100deg, #fafdff 60%, #e3f0ff 100%);
                border-radius: 0 0 32px 32px;
                box-shadow: 0 6px 32px 0 rgba(30, 64, 175, 0.08);
                position: relative;
                overflow: hidden;
                padding: 0;
                z-index: 100;
            }
            .header-bg-glow {
                position: absolute;
                left: 50%;
                top: 0;
                width: 600px;
                height: 180px;
                background: radial-gradient(circle at 50% 30%, #a3c9ff 0%, #fff 80%);
                opacity: 0.25;
                filter: blur(30px);
                transform: translateX(-50%);
                z-index: 0;
            }
            .modern-header .container {
                display: flex;
                justify-content: space-between;
                align-items: center;
                padding: 32px 0 18px 0;
                position: relative;
                z-index: 2;
            }
            .header-left {
                display: flex;
                align-items: center;
                gap: 18px;
            }
            .header-logo {
                width: 56px;
                height: 56px;
                background: linear-gradient(135deg, #2563eb 0%, #60a5fa 100%);
                border-radius: 16px;
                display: flex;
                align-items: center;
                justify-content: center;
                box-shadow: 0 4px 16px rgba(37,99,235,0.10);
                font-size: 2rem;
                color: #fff;
            }
            .header-title-group {
                display: flex;
                flex-direction: column;
                gap: 6px;
            }
            .header-title {
                font-size: 2.2em;
                font-weight: 800;
                letter-spacing: 1px;
                background: linear-gradient(90deg, #0a2463 20%, #1a4b8c 80%);
                -webkit-background-clip: text;
                -webkit-text-fill-color: transparent;
                margin: 0;
                line-height: 1.1;
            }
            .subtitle {
                font-size: 1.1em;
                color: #0a2463;
                font-weight: 600;
                letter-spacing: 2px;
                text-transform: uppercase;
                position: relative;
                display: inline-block;
                background: #e0edff;
                border-radius: 8px;
                padding: 2px 16px;
                box-shadow: 0 2px 8px rgba(96,165,250,0.08);
            }
            .quick-tools {
                display: flex;
                gap: 10px;
            }
            .tool-search {
                display: flex;
                background: #fff;
                border-radius: 50px;
                padding: 5px;
                box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
                margin-right: 10px;
                position: relative;
            }
            .search-input {
                border: none;
                padding: 8px 15px;
                outline: none;
                border-radius: 50px;
                width: 180px;
                font-size: 0.95rem;
                color: #2563eb;
                background: transparent;
            }
            .tool-btn {
                width: 36px;
                height: 36px;
                border-radius: 50%;
                border: none;
                background: #e0edff;
                color: #2563eb;
                display: flex;
                align-items: center;
                justify-content: center;
                cursor: pointer;
                transition: all 0.3s ease;
                font-size: 1.1rem;
            }
            .tool-btn.search-btn {
                position: absolute;
                right: 5px;
                top: 5px;
            }
            .tool-btn:hover {
                background: #2563eb;
                color: #fff;
                transform: translateY(-2px) scale(1.08);
            }
            @media (max-width: 768px) {
                .modern-header .container {
                    flex-direction: column;
                    gap: 18px;
                    padding: 24px 0 10px 0;
                }
                .header-title {
                    font-size: 1.3em;
                }
                .header-logo {
                    width: 40px;
                    height: 40px;
                    font-size: 1.2rem;
                }
            }
        </style>
    </header>

    <nav>
        <div class="container">
            <ul class="main-nav-list">
                <li><a href="index.html" class="active"><i class="fas fa-home"></i> 首页</a></li>
                <li><a href="intro.html"><i class="fas fa-info-circle"></i> 项目介绍</a></li>
                <li><a href="data_prep.html"><i class="fas fa-database"></i> 数据准备</a></li>
                <li><a href="eda.html"><i class="fas fa-chart-bar"></i> 探索性分析</a></li>
                <li><a href="modeling.html"><i class="fas fa-brain"></i> 模型开发</a></li>
                <li><a href="advanced.html"><i class="fas fa-rocket"></i> 高级分析</a></li>
                <li><a href="model.html"><i class="fas fa-fire"></i> 单孔分析模型</a></li>
                <li><a href="timeline.html"><i class="fas fa-clock"></i> 项目时间线</a></li>
            </ul>
            <button class="nav-toggle" id="navToggle">
                <i class="fas fa-bars"></i>
            </button>
        </div>
        <style>
            .main-nav-list {
                display: flex;
                flex-wrap: wrap;
                justify-content: center;
                padding: 0;
                margin: 0;
                list-style: none;
                width: 100%;
            }
            
            .main-nav-list li {
                margin: 0;
                padding: 0;
            }
            
            .main-nav-list li a {
                padding: 12px 15px;
                white-space: nowrap;
            }
            
            @media (max-width: 991px) {
                .main-nav-list {
                    justify-content: flex-start;
                }
            }
            
            @media (max-width: 768px) {
                .main-nav-list {
                    display: none;
                    flex-direction: column;
                    position: absolute;
                    top: 100%;
                    left: 0;
                    right: 0;
                    background: var(--gradient-dark);
                    padding: 20px;
                    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
                    z-index: 1000;
                }
                
                .main-nav-list.active {
                    display: flex;
                }
            }
        </style>
    </nav>

    <div class="hero">
        <div class="hero-bg-animation" id="heroBackground"></div>
        <div class="container">
            <div class="hero-content">
                <div class="hero-row">
                    <div class="hero-text">
                        <h2 class="fade-in">炼焦大数据智能诊断系统</h2>
                        <p class="fade-in delay-1">
                            基于大数据分析和人工智能技术，为炼焦生产过程提供精准诊断和优化方案，
                            实现节能降耗、提质增效的综合解决方案。
                        </p>
                        <div class="hero-actions fade-in delay-2">
                            <a href="#benefits" class="btn btn-primary">了解系统优势</a>
                            <a href="model.html" class="btn btn-outline">查看分析模型</a>
                        </div>
                    </div>
                    <div class="hero-image-container fade-in delay-2">
                        <img src="../images/图片1.svg" alt="炼焦大数据单孔分析模型" class="hero-image">
                    </div>
                </div>
            </div>
        </div>
        <div class="wave-container">
            <svg class="wave" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 100">
                <path fill="#fff" fill-opacity="1" d="M0,64L48,69.3C96,75,192,85,288,80C384,75,480,53,576,48C672,43,768,53,864,58.7C960,64,1056,64,1152,56C1248,48,1344,32,1392,24L1440,16L1440,100L1392,100C1344,100,1248,100,1152,100C1056,100,960,100,864,100C768,100,672,100,576,100C480,100,384,100,288,100C192,100,96,100,48,100L0,100Z"></path>
            </svg>
        </div>
        <style>
            /* 优化英雄区样式 */
            .hero {
                background: linear-gradient(135deg, #184e8e 0%, #112b50 100%);
                color: white;
                padding: 80px 0 50px;
                position: relative;
                overflow: hidden;
            }
            
            .hero-bg-animation {
                position: absolute;
                top: 0;
                left: 0;
                width: 100%;
                height: 100%;
                z-index: 1;
            }
            
            /* 添加动态粒子背景效果 */
            .particle {
                position: absolute;
                border-radius: 50%;
                background: rgba(255, 255, 255, 0.1);
                pointer-events: none;
                z-index: 0;
            }
            
            .hero .container {
                position: relative;
                z-index: 2;
            }
            
            .hero-row {
                display: flex;
                align-items: center;
                justify-content: space-between;
                gap: 30px;
            }
            
            .hero-text {
                flex: 1;
                max-width: 50%;
            }
            
            .hero h2 {
                font-size: 2.8rem;
                font-weight: 800;
                margin-bottom: 1.5rem;
                background: linear-gradient(to right, #ffffff, #e0e7ff);
                -webkit-background-clip: text;
                -webkit-text-fill-color: transparent;
                letter-spacing: 1px;
                line-height: 1.2;
            }
            
            .hero p {
                font-size: 1.2rem;
                line-height: 1.8;
                margin-bottom: 2rem;
                color: rgba(255, 255, 255, 0.9);
            }
            
            .hero-actions {
                display: flex;
                gap: 15px;
            }
            
            .hero-image-container {
                flex: 1;
                display: flex;
                align-items: center;
                justify-content: center;
                max-width: 50%;
                height: 350px;
            }
            
            .hero-image {
                max-width: 100%;
                max-height: 100%;
                border-radius: 12px;
                box-shadow: 0 15px 35px rgba(0, 0, 0, 0.25);
                transition: transform 0.5s ease, box-shadow 0.5s ease;
                object-fit: contain;
            }
            
            .hero-image:hover {
                transform: translateY(-10px) scale(1.02);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
            }
            
            @media (max-width: 991px) {
                .hero-row {
                    flex-direction: column;
                }
                
                .hero-text, .hero-image-container {
                    max-width: 100%;
                }
                
                .hero-image-container {
                    margin-top: 30px;
                }
            }
        </style>
    </div>

    <main>
        <section class="nav-overview fade-in">
        <div class="container">
                <h3 class="section-title">系统功能导航</h3>
                <p class="section-desc">炼焦大数据智能诊断系统提供全方位的数据分析与智能诊断功能，助力炼焦生产过程优化</p>
                
                <div class="nav-modules-grid">
                    <div class="nav-module-card fade-in delay-1">
                        <div class="nav-module-icon">
                            <i class="fas fa-info-circle"></i>
                    </div>
                        <h4>项目介绍</h4>
                        <p>全面了解炼焦大数据智能诊断系统的背景、目标和架构设计</p>
                        <a href="intro.html" class="btn btn-sm">查看详情</a>
                    </div>
                    
                    <div class="nav-module-card fade-in delay-1">
                        <div class="nav-module-icon">
                            <i class="fas fa-database"></i>
                    </div>
                        <h4>数据准备</h4>
                        <p>炼焦数据的采集、清洗和预处理，为分析与建模奠定基础</p>
                        <a href="data_prep.html" class="btn btn-sm">查看详情</a>
                    </div>
                    
                    <div class="nav-module-card fade-in delay-2">
                        <div class="nav-module-icon">
                            <i class="fas fa-chart-bar"></i>
                    </div>
                        <h4>探索性分析</h4>
                        <p>通过多维可视化分析，发现炼焦过程中的规律和相关性</p>
                        <a href="eda.html" class="btn btn-sm">查看详情</a>
                    </div>
                    
                    <div class="nav-module-card fade-in delay-2">
                        <div class="nav-module-icon">
                            <i class="fas fa-brain"></i>
                </div>
                        <h4>模型开发</h4>
                        <p>基于机器学习和深度学习技术，构建炼焦过程预测与优化模型</p>
                        <a href="modeling.html" class="btn btn-sm">查看详情</a>
                    </div>
                    
                    <div class="nav-module-card fade-in delay-3">
                        <div class="nav-module-icon">
                            <i class="fas fa-rocket"></i>
                        </div>
                        <h4>高级分析</h4>
                        <p>融合多源数据，应用高级分析技术实现炼焦过程智能优化</p>
                        <a href="advanced.html" class="btn btn-sm">查看详情</a>
                    </div>
                    
                    <div class="nav-module-card fade-in delay-3 highlight">
                        <div class="nav-module-icon">
                            <i class="fas fa-fire"></i>
                        </div>
                        <h4>单孔分析模型</h4>
                        <p>系统核心功能，实现单孔炼焦过程精准诊断与优化</p>
                        <a href="model.html" class="btn btn-sm btn-primary">查看详情</a>
                    </div>
                    
                    <div class="nav-module-card fade-in delay-4">
                        <div class="nav-module-icon">
                            <i class="fas fa-clock"></i>
                        </div>
                        <h4>项目时间线</h4>
                        <p>系统开发与实施的各阶段历程及关键里程碑</p>
                        <a href="timeline.html" class="btn btn-sm">查看详情</a>
                    </div>
                    
                    <div class="nav-module-card fade-in delay-4">
                        <div class="nav-module-icon">
                            <i class="fas fa-book"></i>
                        </div>
                        <h4>学术研究专区</h4>
                        <p>探索系统背后的学术研究成果与技术原理</p>
                        <a href="#research" class="btn btn-sm">查看详情</a>
                        </div>
                    </div>
                </div>
            </section>

        <section class="overview">
            <div class="container">
                <h2 class="section-title fade-in">项目概述</h2>
                <div class="overview-content fade-in delay-1">
                    <div class="overview-text-full">
                        <p class="overview-intro">炼焦大数据智能诊断系统是一个集数据采集、分析、预测和优化于一体的综合性平台，旨在通过大数据和人工智能技术赋能传统炼焦工业，实现智能化转型。系统基于海量生产数据，构建了涵盖工艺参数监控、质量预测、异常诊断和优化建议的全方位分析模型。</p>
                        <p class="overview-value">该系统的核心价值在于将数据转化为实际可操作的生产指导，帮助炼焦企业实现降本增效、质量提升和节能减排的目标。</p>
                        
                        <div class="overview-metrics">
                            <div class="metric-item">
                                <div class="metric-value"><span class="counter" data-target="98.5">0</span>%</div>
                                <div class="metric-label">预测准确率</div>
                            </div>
                            <div class="metric-item">
                                <div class="metric-value"><span class="counter" data-target="35">0</span>%</div>
                                <div class="metric-label">能源利用提升</div>
                            </div>
                            <div class="metric-item">
                                <div class="metric-value"><span class="counter" data-target="42">0</span>%</div>
                                <div class="metric-label">效率提升</div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
            <style>
                .overview {
                    padding: 80px 0;
                    background: linear-gradient(to bottom, #ffffff, #f8f9fa);
                    position: relative;
                }
                
                .overview:before {
                    content: '';
                    position: absolute;
                    top: 0;
                    left: 0;
                    width: 100%;
                    height: 100%;
                    background: url('../images/custom/pattern-light.svg') repeat;
                    opacity: 0.05;
                    z-index: 0;
                }
                
                .overview .container {
                    position: relative;
                    z-index: 1;
                }
                
                .overview-text-full {
                    max-width: 1000px;
                    margin: 0 auto;
                    text-align: center;
                }
                
                .overview-intro {
                    font-size: 1.25rem;
                    line-height: 1.8;
                    color: #333;
                    margin-bottom: 1.5rem;
                    font-weight: 400;
                }
                
                .overview-value {
                    font-size: 1.4rem;
                    line-height: 1.6;
                    color: #1a4b8c;
                    margin-bottom: 2.5rem;
                    font-weight: 500;
                }
                
                .overview-metrics {
                    display: flex;
                    justify-content: center;
                    gap: 40px;
                    margin-top: 40px;
                }
                
                .metric-item {
                    background: linear-gradient(135deg, #fff 0%, #f5f7ff 100%);
                    border-radius: 12px;
                    padding: 25px 40px;
                    text-align: center;
                    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.06);
                    transition: all 0.3s ease;
                    min-width: 180px;
                }
                
                .metric-item:hover {
                    transform: translateY(-10px);
                    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
                }
                
                .metric-value {
                    font-size: 2.8rem;
                    font-weight: 700;
                    color: #1a4b8c;
                    margin-bottom: 10px;
                    background: linear-gradient(to right, #1a4b8c, #4a90e2);
                    -webkit-background-clip: text;
                    -webkit-text-fill-color: transparent;
                }
                
                .metric-label {
                    font-size: 1.1rem;
                    color: #444;
                    font-weight: 500;
                }
                
                @media (max-width: 768px) {
                    .overview-metrics {
                        flex-direction: column;
                        align-items: center;
                        gap: 20px;
                    }
                    
                    .metric-item {
                        width: 80%;
                    }
                    
                    .overview-intro, .overview-value {
                        font-size: 1.1rem;
                    }
                }
            </style>
        </section>

        <section class="tech-stack-section">
            <div class="container">
                <h2 class="tech-stack-title">核心技术栈</h2>
                <p class="text-center mb-5">我们采用前沿技术搭建高性能、可靠的炼焦大数据智能诊断系统</p>
                
                <div class="tech-stack-grid">
                    <div class="tech-item">
                        <div class="tech-icon">
                            <img src="../images/custom/python-icon.svg" alt="Python" />
                        </div>
                        <div class="tech-name">Python</div>
                    </div>
                    <div class="tech-item">
                        <div class="tech-icon">
                            <img src="../images/custom/pytorch-icon.svg" alt="PyTorch" />
                        </div>
                        <div class="tech-name">PyTorch</div>
                    </div>
                    <div class="tech-item">
                        <div class="tech-icon">
                            <img src="../images/custom/tensorflow-icon.svg" alt="TensorFlow" />
                        </div>
                        <div class="tech-name">TensorFlow</div>
                    </div>
                    <div class="tech-item">
                        <div class="tech-icon">
                            <img src="../images/custom/tech-icons/numpy.svg" alt="Pandas" />
                        </div>
                        <div class="tech-name">Pandas</div>
                    </div>
                    <div class="tech-item">
                        <div class="tech-icon">
                            <img src="../images/custom/tech-icons/scikit.svg" alt="Scikit-Learn" />
                        </div>
                        <div class="tech-name">Scikit-Learn</div>
                    </div>
                    <div class="tech-item">
                        <div class="tech-icon">
                            <img src="../images/custom/tech-icons/react.svg" alt="React" />
                        </div>
                        <div class="tech-name">React</div>
                    </div>
                    <div class="tech-item">
                        <div class="tech-icon">
                            <img src="../images/custom/tech-icons/docker.svg" alt="Docker" />
                        </div>
                        <div class="tech-name">Docker</div>
                    </div>
                    <div class="tech-item">
                        <div class="tech-icon">
                            <img src="../images/custom/tech-icons/postgres.svg" alt="PostgreSQL" />
                        </div>
                        <div class="tech-name">PostgreSQL</div>
                    </div>
                </div>
            </div>
        </section>

        <!-- 新增炼焦工艺可视化部分 -->
        <section class="process-visualization fade-in">
            <div class="container">
                <h2 class="section-title">炼焦工艺可视化</h2>
                <p class="section-desc">通过直观的图形展示，深入了解炼焦生产工艺、设备结构和关键参数</p>
                
                <div class="row mt-4 align-items-center">
                    <div class="col-lg-6 fade-in delay-1">
                        <div class="visualization-card">
                            <h3><i class="fas fa-industry"></i> 炼焦炉结构</h3>
                            <div class="visualization-image">
                                <img src="../images/custom/coking_oven.svg" alt="炼焦炉结构示意图" class="img-fluid">
                            </div>
                            <p>炼焦炉是炼焦生产的核心设备，由炉体、加热系统、装煤系统、出焦系统和煤气回收系统等组成，本图直观展示了炼焦炉的主要结构和工作原理。</p>
                        </div>
                    </div>
                    <div class="col-lg-6 fade-in delay-2">
                        <div class="visualization-card">
                            <h3><i class="fas fa-temperature-high"></i> 温度曲线分析</h3>
                            <div class="visualization-image">
                                <img src="../images/custom/temperature_curve.svg" alt="炼焦过程温度曲线分析" class="img-fluid">
                            </div>
                            <p>炼焦温度是影响焦炭质量的关键因素，温度曲线分析帮助工程师理解不同位置的温度变化规律，优化加热控制策略，提高焦炭质量和能源利用效率。</p>
                        </div>
                    </div>
                </div>
                
                <div class="row mt-4 align-items-center">
                    <div class="col-lg-6 fade-in delay-3">
                        <div class="visualization-card">
                            <h3><i class="fas fa-bolt"></i> 能源消耗对比</h3>
                            <div class="visualization-image">
                                <img src="../images/custom/energy_comparison.svg" alt="炼焦工艺能源消耗对比分析" class="img-fluid">
                            </div>
                            <p>通过对比不同炼焦工艺的能源消耗，识别节能潜力，采用先进的数字孪生和智能优化技术，实现能源消耗降低和减排目标，推动炼焦工业绿色发展。</p>
                        </div>
                    </div>
                    <div class="col-lg-6 fade-in delay-4">
                        <div class="visualization-card">
                            <h3><i class="fas fa-project-diagram"></i> 炼焦知识图谱</h3>
                            <div class="visualization-image">
                                <img src="../images/custom/knowledge_graph.svg" alt="炼焦行业知识图谱" class="img-fluid" onerror="this.onerror=null; this.src='../images/knowledge_graph.svg';">
                            </div>
                            <p>炼焦知识图谱整合了设备、工艺参数、质量指标和原料产品之间的复杂关系，为智能诊断和决策提供知识支撑，实现知识驱动的智能分析。</p>
                        </div>
                    </div>
                </div>
                
                <div class="text-center mt-5 fade-in delay-5">
                    <a href="model.html" class="btn btn-primary btn-lg">探索单孔分析模型 <i class="fas fa-arrow-right"></i></a>
                    </div>
                </div>
            </section>

        <section class="academic-research" id="research">
            <div class="container">
                <h3 class="fade-in">学术研究专区</h3>
                <p class="section-desc fade-in delay-1">
                    探索系统背后的技术原理与研究成果，深入了解炼焦大数据智能诊断系统的核心技术与应用
                </p>
                
                <div class="research-papers fade-in delay-2">
                    <div class="paper-card">
                        <div class="paper-card-inner">
                            <h4 class="paper-title">数据准备方法与数据质量保障</h4>
                            <div class="paper-tags">
                                <span class="paper-tag">数据清洗</span>
                                <span class="paper-tag">特征工程</span>
                                <span class="paper-tag">质量控制</span>
                            </div>
                            <p class="paper-desc">
                                详细介绍炼焦数据的采集、清洗和预处理流程，以及如何确保数据质量以支持后续的高级分析。
                            </p>
                            <div class="paper-footer">
                                <div class="paper-date">更新时间：2023-12-10</div>
                                <a href="data_prep_intro.html" class="btn btn-sm">查看详情</a>
                            </div>
                        </div>
                    </div>
                    
                    <div class="paper-card">
                        <div class="paper-card-inner">
                            <h4 class="paper-title">炼焦过程探索性数据分析</h4>
                            <div class="paper-tags">
                                <span class="paper-tag">数据可视化</span>
                                <span class="paper-tag">统计分析</span>
                                <span class="paper-tag">变量关联</span>
                            </div>
                            <p class="paper-desc">
                                深入研究炼焦过程数据特征，通过多维度可视化与统计分析，揭示数据中的规律和关联关系。
                            </p>
                            <div class="paper-footer">
                                <div class="paper-date">更新时间：2023-12-15</div>
                                <a href="eda_intro.html" class="btn btn-sm">查看详情</a>
                            </div>
                        </div>
                    </div>
                    
                    <div class="paper-card featured">
                        <div class="paper-card-inner">
                            <h4 class="paper-title">单孔分析模型的理论基础与应用</h4>
                            <div class="paper-tags">
                                <span class="paper-tag">核心算法</span>
                                <span class="paper-tag">模型原理</span>
                                <span class="paper-tag">案例研究</span>
                            </div>
                            <p class="paper-desc">
                                作为系统核心的单孔分析模型，详细阐述其理论基础、算法设计和应用场景，以及在实际生产中的效果验证。
                            </p>
                            <div class="paper-footer">
                                <div class="paper-date">更新时间：2023-12-20</div>
                                <a href="model_intro.html" class="btn btn-sm btn-primary">查看详情</a>
                            </div>
                        </div>
                    </div>
                    
                    <div class="paper-card">
                        <div class="paper-card-inner">
                            <h4 class="paper-title">炼焦智能模型开发与评估</h4>
                            <div class="paper-tags">
                                <span class="paper-tag">机器学习</span>
                                <span class="paper-tag">深度学习</span>
                                <span class="paper-tag">模型评估</span>
                            </div>
                            <p class="paper-desc">
                                探讨炼焦过程中各类预测模型的开发流程，包括特征选择、算法比较、模型训练与评估方法。
                            </p>
                            <div class="paper-footer">
                                <div class="paper-date">更新时间：2023-12-25</div>
                                <a href="modeling_intro.html" class="btn btn-sm">查看详情</a>
                            </div>
                        </div>
                    </div>
                    
                    <div class="paper-card">
                        <div class="paper-card-inner">
                            <h4 class="paper-title">炼焦过程高级分析方法</h4>
                            <div class="paper-tags">
                                <span class="paper-tag">多源数据融合</span>
                                <span class="paper-tag">知识图谱</span>
                                <span class="paper-tag">数字孪生</span>
                            </div>
                            <p class="paper-desc">
                                介绍系统中采用的高级分析技术，如何将多维数据与领域知识相结合，实现更深层次的炼焦过程优化。
                            </p>
                            <div class="paper-footer">
                                <div class="paper-date">更新时间：2023-12-30</div>
                                <a href="advanced_intro.html" class="btn btn-sm">查看详情</a>
                            </div>
                            </div>
                        </div>
                    </div>
                </div>
            </section>

        <section class="benefits" id="benefits">
            <div class="container">
                <h3 class="section-title">预期效益</h3>
                <div class="row benefits-row">
                    <div class="benefit-card">
                        <div class="benefit-icon">
                            <i class="fas fa-chart-line"></i>
        </div>
                        <h4>生产效率提升15%</h4>
                        <p>通过优化生产参数和实时监控，显著提高炼焦效率</p>
                    </div>
                    <div class="benefit-card">
                        <div class="benefit-icon">
                            <i class="fas fa-fire-alt"></i>
                        </div>
                        <h4>能源消耗降低10%</h4>
                        <p>精准控制加热过程，减少不必要的能源消耗</p>
                    </div>
                    <div class="benefit-card">
                        <div class="benefit-icon">
                            <i class="fas fa-exclamation-triangle"></i>
                        </div>
                        <h4>异常预警提前30分钟</h4>
                        <p>提前发现潜在问题，预防设备故障和生产事故</p>
                    </div>
                    <div class="benefit-card">
                        <div class="benefit-icon">
                            <i class="fas fa-medal"></i>
                        </div>
                        <h4>产品质量提升8%</h4>
                        <p>通过精确控制炼焦过程，提高焦炭质量稳定性</p>
                    </div>
                    </div>
                </div>
            </section>

        <section class="project-intro dynamic-gray-bg">
            <div class="container">
                <div class="project-intro-content">
                    <h2>炼焦大数据智能诊断系统</h2>
                    <p>
                        炼焦大数据智能诊断系统是一套基于大数据和人工智能技术的综合解决方案，
                        旨在通过多源数据融合、深度学习和知识图谱等先进技术，实现对炼焦过程的智能监控、
                        故障诊断和优化控制，为企业提升生产效率、降低能耗、提高产品质量提供有力支持。
                    </p>
                    <p>
                        系统集成了数据采集与预处理、探索性分析、模型构建、高级分析和可视化展示等多个功能模块，
                        形成了一套完整的炼焦过程智能分析与诊断体系，具有较强的实用性和推广价值。
                    </p>
                    <div class="tech-stack">
                        <div class="tech-cards">
                            <div class="tech-card">
                                <div class="tech-icon">
                                    <i class="fas fa-database"></i>
                                </div>
                                <h3>大数据处理</h3>
                            </div>
                            <div class="tech-card">
                                <div class="tech-icon">
                                    <i class="fas fa-brain"></i>
                                </div>
                                <h3>深度学习</h3>
                            </div>
                            <div class="tech-card">
                                <div class="tech-icon">
                                    <i class="fas fa-project-diagram"></i>
                                </div>
                                <h3>知识图谱</h3>
                            </div>
                            <div class="tech-card">
                                <div class="tech-icon">
                                    <i class="fas fa-chart-line"></i>
                                </div>
                                <h3>智能分析</h3>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </section>
    </main>

    <footer>
        <div class="container">
            <div class="footer-content">
                <div class="footer-logo">
                    <h3><i class="fas fa-chart-line"></i> 炼焦大数据智能诊断系统</h3>
                    <p>数据驱动 · 智能决策 · 持续优化</p>
                </div>
                <div class="footer-links">
                    <div class="footer-links-group">
                        <h4>快速链接</h4>
                    <ul>
                        <li><a href="index.html">首页</a></li>
                            <li><a href="data_prep.html">数据准备</a></li>
                            <li><a href="eda.html">探索性分析</a></li>
                            <li><a href="modeling.html">模型开发</a></li>
                            <li><a href="advanced.html">高级分析</a></li>
                            <li><a href="model.html">单孔分析模型</a></li>
                    </ul>
                </div>
                    <div class="footer-links-group">
                        <h4>学术研究</h4>
                        <ul>
                            <li><a href="data_prep_intro.html">数据准备方法</a></li>
                            <li><a href="eda_intro.html">探索性分析研究</a></li>
                            <li><a href="modeling_intro.html">模型开发方法</a></li>
                            <li><a href="advanced_intro.html">高级分析技术</a></li>
                            <li><a href="model_intro.html">单孔分析模型研究</a></li>
                        </ul>
                    </div>
                    <div class="footer-links-group">
                        <h4>联系我们</h4>
                        <ul>
                            <li><i class="fas fa-envelope"></i> contact@coking-analytics.com</li>
                            <li><i class="fas fa-phone"></i> +86 123 4567 8910</li>
                            <li><i class="fas fa-map-marker-alt"></i> 中国·上海</li>
                    </ul>
                </div>
                </div>
            </div>
            <div class="footer-bottom">
                <p>© 2023 炼焦大数据智能诊断系统. 保留所有权利.</p>
            </div>
        </div>
    </footer>

    <script>
        document.addEventListener('DOMContentLoaded', function() {
            // 英雄区动态背景效果
            const heroBackground = document.getElementById('heroBackground');
            if (heroBackground) {
                // 创建粒子
                const particleCount = 50;
                for (let i = 0; i < particleCount; i++) {
                    createParticle(heroBackground);
                }
                
                // 动画效果
                animateParticles();
            }
            
            // 初始化其他动画和交互效果
            initAnimations();
        });
        
        // 创建单个粒子
        function createParticle(container) {
            const particle = document.createElement('div');
            particle.classList.add('particle');
            
            // 随机大小
            const size = Math.random() * 15 + 5;
            particle.style.width = `${size}px`;
            particle.style.height = `${size}px`;
            
            // 随机位置
            const posX = Math.random() * 100;
            const posY = Math.random() * 100;
            particle.style.left = `${posX}%`;
            particle.style.top = `${posY}%`;
            
            // 随机透明度
            const opacity = Math.random() * 0.3 + 0.1;
            particle.style.opacity = opacity;
            
            // 添加动画数据
            particle.dataset.speedX = (Math.random() - 0.5) * 0.5;
            particle.dataset.speedY = (Math.random() - 0.5) * 0.5;
            
            container.appendChild(particle);
        }
        
        // 粒子动画
        function animateParticles() {
            const particles = document.querySelectorAll('.particle');
            
            particles.forEach(particle => {
                // 获取当前位置
                const rect = particle.getBoundingClientRect();
                const containerRect = particle.parentElement.getBoundingClientRect();
                
                // 计算相对位置
                let x = (rect.left - containerRect.left) / containerRect.width * 100;
                let y = (rect.top - containerRect.top) / containerRect.height * 100;
                
                // 更新位置
                x += parseFloat(particle.dataset.speedX);
                y += parseFloat(particle.dataset.speedY);
                
                // 边界检查
                if (x < 0) x = 100;
                if (x > 100) x = 0;
                if (y < 0) y = 100;
                if (y > 100) y = 0;
                
                // 应用新位置
                particle.style.left = `${x}%`;
                particle.style.top = `${y}%`;
            });
            
            requestAnimationFrame(animateParticles);
        }
        
        // 初始化其他动画
        function initAnimations() {
            // 淡入动画
            const observer = new IntersectionObserver((entries) => {
                entries.forEach(entry => {
                    if (entry.isIntersecting) {
                        entry.target.classList.add('visible');
                    }
                });
            }, {
                threshold: 0.1
            });
            
            document.querySelectorAll('.fade-in').forEach(element => {
                observer.observe(element);
            });
            
            // 移动端导航菜单
            const navToggle = document.getElementById('navToggle');
            const mainNavList = document.querySelector('.main-nav-list');
            
            if (navToggle && mainNavList) {
                navToggle.addEventListener('click', function() {
                    mainNavList.classList.toggle('active');
                    navToggle.classList.toggle('active');
                });
            }
        }
    </script>
</body>
</html> 